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[C++] Add Builder and Table typedefs (#5685)

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* Add Builder and Table typedefs

This gives us a way to use templates to go from a builder to a table
and back again without having to pass both types in.

* Fix tests/cpp17/generated_cpp17/monster_test_generated.h
This commit is contained in:
Austin Schuh
2019-12-26 14:56:46 -08:00
committed by Wouter van Oortmerssen
parent 31f8799083
commit 901b89e733
11 changed files with 107 additions and 0 deletions
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5
src/idl_gen_cpp.cpp
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@@ -273,6 +273,9 @@ class CppGenerator : public BaseGenerator {
if (!struct_def.generated) {
SetNameSpace(struct_def.defined_namespace);
code_ += "struct " + Name(struct_def) + ";";
if (!struct_def.fixed) {
code_ += "struct " + Name(struct_def) + "Builder;";
}
if (opts_.generate_object_based_api) {
auto nativeName = NativeName(Name(struct_def), &struct_def, opts_);
if (!struct_def.fixed) { code_ += "struct " + nativeName + ";"; }
@@ -1833,6 +1836,7 @@ class CppGenerator : public BaseGenerator {
if (opts_.generate_object_based_api) {
code_ += " typedef {{NATIVE_NAME}} NativeTableType;";
}
code_ += " typedef {{STRUCT_NAME}}Builder Builder;";
if (opts_.mini_reflect != IDLOptions::kNone) {
code_ +=
" static const flatbuffers::TypeTable *MiniReflectTypeTable() {";
@@ -2085,6 +2089,7 @@ class CppGenerator : public BaseGenerator {
// Generate a builder struct:
code_ += "struct {{STRUCT_NAME}}Builder {";
code_ += " typedef {{STRUCT_NAME}} Table;";
code_ += " flatbuffers::FlatBufferBuilder &fbb_;";
code_ += " flatbuffers::uoffset_t start_;";